Cement block and wall structure



0. J. OLAFSON.

CEMENT BLOCK AND WALL STRUCTURE.

APPLICATION FILED MAR-18,1921.

Patented Jan. 24, 1922.

of the corner b ock.

- UNITED STATES PATENT ornca.

CEMENT BLOCK AND WALL STRIlCTURE.

Specification of Letters Patent.

Patented Jan. 24, 1922.

Application fil ed March 18, 1921. Serial No. 458,819.

To all whom it ma concern 4 Be'it known t at I, OLAFUR'JONSSON OLAFSON, a subject of the King of Great Britain, and resident of the'town of Kandahar, in the Province of Saskatchewan, Do-

minion of Canada, have invented certain new and useful Improvements in Cement Blocks and Wall Structure, of which the following is a specification.

This Invention relates to improvements inicement blocks and the wall structure made therefrom, and the objects of the invention are to rovide a simple and effective method by which cement blocks may be laid with greater facility and by those unskilled in such work.

Further objects are generally to improve and simplify the construction of the blocks to better ada t them to perform the functions require of them.

Cement blocks are preferably held together .by a mixture of Portland cement, which differs from mortar used in ordinary brick-laying, and the blocks require to be laid with a comparatively thin layer or film of cementitious material between them. It is difficult to lay ordinary blocks properly without considerable experience, and this difficulty is overcome in the present invention by providing means whereby the roper amount of cement will be gaged an automatically spread between the surfaces which are to be cemented together. This purpose is accomplished .by forming a receiving groove or recess in the lowermost block and a rib in the uppermost block adapted to project therein and force the cementitious material therefrom and between the blocks, all as hereinafter more fully set forth and described in the accompanying specification and drawings.

In the drawings: l v Figure l is a perspective view of a section of a wall constructed in accordance with the present invention. I

Figure 2 is a plan view of a left hand corner, showing one course of the blocks.

Figure 3 isa plan view of a right hand corner showing a different course of the blocks.

Figure 4 is a erspective view of one form Figure 5 is a perspective view of the T- sh%ped blocks.

igure 6 is a pers ective view of the second f0rm of corner locks.

F igure is a vertical sectional view show- 111% the joints between the twoblocks.

igure 8 1s a perspective view of the T- shaped block in inverted position In the drawings like characters of reference indicate corresponding parts in all they figures.

Referring to the drawin s:

A indicates the T-shape block constituting the side of the wall formed with a face portion 10 and a lateral portion 11 at right angles thereto, and extending from substantially the centre of the face portion, both the face portion and the lateral portion having a recess or groove 12 in the upper edge thereof and a rib 13 in the lower edge thereof adapted to fit the groove 12 provided in the upper edge of the block.- The edge of. the face portion is also formed with grooves 14 designed to co-operate with corresponding grooves 15 formed in the edge of the lateral portion to receive bonding material such as grouting, whichmay be poured in the grooves after the blocks have been laid in osition. v

indicates one form of corner member, and C, the opposite form of corner member, these members being laid alternately in the corner, as shown in the drawings. The corner member B is .of angular shape and is formed with grooves 16 in the upper surface and corresponding ribs 17 in the lower surface and formed with face portions 18 and 19, the ends of which are formed with a groove 20 co-operating with a groove in the end of the member A to receive bonding material.

The corner member C is of angular shape and formed with a groove 21 in the upper side and a rib 22 in the lower side adapted to fit the roove 18 in the corner member B below 1t. The corner member is also formed on the side with grooves 23 adapted with the grooves .14 to form recesses to receive the grouting material. The side faces on the member C do not roject laterally as far as those on the mem or B, whereby it will be possible to break joints between the side members in the different rows, as Shown in Figure 1.

The size of the grooves in the top of each block is such that, when the ribs of the next block above are forced into the grooves, the grooves having previously been filled with cementitious material, or grouting, sufficient cementitious material, or grouting, will be caused to overflow from the groove into the space between the blocks to form a proper binding medium between the blocks. In this way, the exact amount of material necessary may be forced into position between the blocks.

It will be observed that the T-shaped blocks A are laid back to back, and so constitute, substantially, rectangular air spaces in the wall, and at the same time provide a well and uniformly reinforced wall.

As many changes could be made in the above construction, and many apparently widely different embodiments of my invention within the scope of the claims, constructed without departing from the spirit or scope thereof, it is intended that all matshaped blocks being formed with grooved edges forming recesses to receive grouting material, and grouting material in said re cesses, the said blocks being further formed with grooves on their upper surface and ribs on their lower surface designed to enter the grooves of the blocks in the lower course.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

OLAFUR J ONSSON OLAFSON.

Witnesses THORSTINE INDRIDOSON, Roeman STEVENSON. 

